#AC6540
Closest named color: Earth (#A2653E). oklch(57.9% 0.105 47.4), rgb(172, 101, 64).
Aa
Black text reads best on this color (4.68:1).
About this color
#AC6540 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.105 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.019 away. Black text reads best on it, at 4.68:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.68:1 |
| White text | 4.47:1 |
Values
| HEX | #AC6540 |
| RGB | rgb(172, 101, 64) |
| HSL | hsl(21, 46%, 46%) |
| OKLCH | oklch(57.9% 0.105 47.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #AC6540 | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #AC6540 | 4.68:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #AC6540 text on white | 4.47:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #AC6540 text on black | 4.68:1 | AA | Lc -30.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E2
oklch(93.5% 0.014 46.2)
-
Step 200
200
#E9D4CB
oklch(88.5% 0.027 44.7)
-
Step 300
300
#DBB8A7
oklch(80.9% 0.047 47.4)
-
Step 400
400
#C89278
oklch(70.6% 0.075 46.7)
-
Step 500
500
#B97755
oklch(63.1% 0.096 47.7)
-
Step 600
600 (this color)
#AC6540
oklch(57.9% 0.105 47.4)
-
Step 700
700
#8D4D2C
oklch(49% 0.098 46.7)
-
Step 800
800
#734025
oklch(42.8% 0.082 47.5)
-
Step 900
900
#5D3723
oklch(37.8% 0.063 47.9)
-
Step 950
950
#362015
oklch(26.9% 0.039 47.1)
#AC6540 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #786E3D | 0.092 |
| Deuteranopia (no green cones) | #897D3F | 0.084 |
| Tritanopia (no blue cones) | #BB575C | 0.062 |
| Achromatopsia (no color) | #777777 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC6540
#AC6540
oklch(57.9% 0.105 47.4)
- #1B86AA
#1B86AA
oklch(58% 0.105 226.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #AC6540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.019
- Copper #B66325 ΔE 0.028
- Clay #B66A50 ΔE 0.028
- Clay Brown #B2713D ΔE 0.035
- Adobe #BD6C48 ΔE 0.038
- Orangey Brown #B16002 ΔE 0.039
- Umber #B26400 ΔE 0.041
- Raw Umber #A75E09 ΔE 0.041
Use #AC6540 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.